The nose, mouth, ears and eyes decide the entry of foreign particles. Little children mostly acquire it because mostly children put their hands or stick their tongues on nearby objects which are mostly infested with bacterias and pathogens, sometimes these particles are harmful and sometimes they aren't.
Answer:
The monetary or utilitarian upsides of biodiversity depend upon the reliance of man on biodiversity; items that nature can give: wood, food, strands to make paper, gums, synthetic natural items, qualities just as information for biotechnology, including medication and corrective sub-items.
Explanation:
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Explanation:
Low power objective shows more field of view but does not give appreciable details about the view.
- In the root tip of onions, the cell walls are distinctly visible and they are arranged in a rectangular mosaic pattern.
- The nucleus stands out appreciably and it is tiny.
- The cytoplasm is also visible.
- Root cells do not have chloroplast since they do not take part in photosynthesis.
Learn more:
Onion cell brainly.com/question/2855039
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